package chapter05.Example3;

import java.util.Locale;

public class Example3 {
    public static void main(String[] args) {
        String str = "abcd";
        System.out.println("将字符串转换为字符数组后的结果");
        char[] charArray = str.toCharArray();
        for (int i = 0; i< charArray.length; i++){
            if (i != charArray.length - 1){
                System.out.println(charArray[i] + ",");
            }else {
                System.out.println(charArray[i]);
            }
        }
        System.out.println("将int值转换为String类型之后的结果:" + String.valueOf(12));
        System.out.println("将字符串转换成大写字母之后的结果:" + str.toUpperCase());
        System.out.println("将字符串转换成小写字母之后的结果:" + str.toLowerCase());
    }
}
